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AIIMS Full Mock Test 21

This mock test of AIIMS Full Mock Test 21 for NEET helps you for every NEET entrance exam.
This contains 200 Multiple Choice Questions for NEET AIIMS Full Mock Test 21 (mcq) to study with solutions a complete question bank.
The solved questions answers in this AIIMS Full Mock Test 21 quiz give you a good mix of easy questions and tough questions. NEET
students definitely take this AIIMS Full Mock Test 21 exercise for a better result in the exam. You can find other AIIMS Full Mock Test 21 extra questions,
long questions & short questions for NEET on EduRev as well by searching above.

QUESTION: 1

A body moves along a straight line such that its displacement at any time t is given by s=(t3 - 6t2 +3t+4) The velocity of body when acceleration is zero is

A.

42 m/s

B.

3 m/s

C.

–9 m/s

D.

–15 m/s

Solution:

QUESTION: 2

The north pole of a magnet is brought near a metallic ring. Then the direction of the induced current in the ring will be

A.

towards north

B.

towards south

C.

anticlockwise

D.

clockwise

Solution:

QUESTION: 3

When a disc having velocity of its center of mass vcm, is rolling then velocity at the highest point on the disc will be

A.

2vcm and at point of contact is vcm

B.

3vcm and at point of contact is vcm

C.

2vcm and at point of contact is zero

D.

vcm and at point of contact is vcm

Solution:

QUESTION: 4

If 92U238 undergoes successively 8α - decays and 6β - decays then the resulting nucleus is

A.

B.

C.

D.

none

Solution:

QUESTION: 5

The equation of wave is given by

If the displacement is 5 cm at t = 0 then the total phase at t = 7.5 sec is

A.

B.

C.

D.

Solution:

QUESTION: 6

A wooden block of mass 8 kg is tied to a string attched to the bottom of the tank. In the equilibrium the block is completely immersed in water. If relative density of wood is 0.8 and g = 10 ms–2, the tension T, in the string is

A.

120 N

B.

100 N

C.

80 N

D.

20 N

Solution:

QUESTION: 7

In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas molecule will give out 30 joule of heat and 10 joule of work is done on the gas. If the initial internal energy of the gas was 40 joule then the final internal energy will be

A.

–20 J

B.

20 J

C.

80 J

D.

zero

Solution:

QUESTION: 8

A hollow charged metal sphere has radius r. If the potential difference between its surface and a point at a distance 3r from the center is V, then electric field intensity at a distance 3r is

A.

V/2r

B.

V/3r

C.

V/6r

D.

V/4r

Solution:

QUESTION: 9

A source of sound is moving with a velocity 50 m/s towards a stationary observer. The observer measures the frequency of the source as 1000 Hz. What will be apparent frequency of the source when it is moving away from the observer after crossing him? The velocity of sound in the medium is 350 m/s.

A.

1330 Hz

B.

1140 Hz

C.

750 Hz

D.

850 Hz

Solution:

QUESTION: 10

The focal length of a thin convex lens for red and blue rays are 100 cm and 96.8 cm respectively. The dispersive power of the material of the lens is

A.

0.0325

B.

0.825

C.

0.968

D.

0.98

Solution:

QUESTION: 11

Two particles are seen to collide and move jointly together after the inelastic collision. During such a collision, for the total system

A.

neither the mechanical energy nor the linear momentum are conserved.

B.

both the mechanical energy and the linear momentum are conserved.

C.

linear momentum is conserved but not the mechanical energy.

D.

mechanical energy is conserved but not the linear momentum

Solution:

QUESTION: 12

A capillary tube of internal diameter 2 mm and external diameter 5 mm hangs vertically from the arm of the balance. The lower end of the tube just touching a liquid of surface tension 40 dyne/cm. If the angle of contact is zero, the change in weight due to surface tension will be

A.

0.44 gmf

B.

0.0444 gmf

C.

0.99 gmf

D.

0.088 gmf

Solution:

QUESTION: 13

The pressure inside the soap bubbles is 1.01 and 1.02 atmosphere respectively. The ratio of their volumes is

A.

2 : 1

B.

8 : 1

C.

(102)3 : (101)3

D.

102 : 101

Solution:

QUESTION: 14

The angular velocity of rotation of a star (of mass M and radius R) at which the matter starts to escape from its equator is

A.

B.

C.

D.

Solution:

QUESTION: 15

For an enclosure maintained at 1000 K the minimum radiation occurs at wavelength . If the temperature is raised to 2000 K, the wavelength will be

A.

B.

C.

D.

Solution:

QUESTION: 16

The frequency of forced vibration equals the

A.

Natural damped frequency

B.

Natural undamped frequency

C.

Resonance frequency

D.

Frequency of the applied sinusoidal force.

Solution:

QUESTION: 17

A wave traveling along the negative x-direction with amplitude 0.01 m. frequency 550 Hz and speed 330 m/sec is represented by the equation

A.

B.

C.

D.

All of these

Solution:

QUESTION: 18

The given figure representing a sinusoidal wave is traveling in string along positive x-direction. P and Q are the two points on the string. The direction of the velocity of particles at P(VP) and at Q(VQ) will be

A.

VP upward and VQ downward

B.

VP downward and VQ upward

C.

VP and VQ both downward

D.

VP and VQ both upward.

Solution:

QUESTION: 19

Calculate the time period of the block of mass m shown in figure, if the spring constant of the spring is K and surface is frictionless

A.

B.

C.

D.

None of these

Solution:

QUESTION: 20

A projectile is given initial velocity 50 ms–1 and angle of projection is 30º. The average acceleration in first three seconds will be

A.

g

B.

g/3

C.

g/√3

D.

g √3/2.

Solution:

QUESTION: 21

What is maximum value of ‘F’ for which both blocks move together? (g = 10 m/sec2)

A.

30 N

B.

40 N

C.

50 N

D.

60 N.

Solution:

QUESTION: 22

If coefficient of limiting friction is 2.4 then maximum uniform speed of a vehicle on a track of radius 24 m for no slipping, can be (Take g = 10 m/sec2)

A.

48 ms–1

B.

36 ms–1

C.

24 ms–1

D.

12 ms–1

Solution:

QUESTION: 23

The minimum ‘v’ that should be given to block so that it doesn’t slide on smooth circular track i.e., it breaks off immediately is

A.

B.

C.

D.

None of these

Solution:

QUESTION: 24

Escape velocity;

here r→ radius of earth

M → mass of earth

and G → universal constant

% error in measurement of vesc is 3% and in 'M' and 'R' are 1% and 2% respectively. The maximum % error in measurement of 'G' is

A.

11%

B.

9%

C.

9/2%

D.

11/2 %.

Solution:

QUESTION: 25

Flywheel is an important part of steam engine because

A.

It accelerates the speed of the engine

B.

It gives strength of the engine

C.

It decreases the moment of inertia

D.

It helps the engine in keeping the speed uniform.

Solution:

QUESTION: 26

A missile is launched with the velocity less than the escape velocity. Sum of its kinetic energy and potential energy is

A.

Positive

B.

Negative

C.

May be negative or positive depending upon its initial position with surface of earth.

D.

Zero.

Solution:

QUESTION: 27

The bob of pendulum is attached to a metallic thread having coefficient of linear expansion ‘α’. If temperature is increased by 50º C and α = 1.2 x 10–3 (Cº)–1, then in 5 minutes the pendulum.

A.

Gains 9 seconds

B.

Gains 12 seconds

C.

Loses 9 seconds

D.

Loses 12 seconds.

Solution:

QUESTION: 28

One mole of oxygen gas undergoes 50% dissociation into oxygen atoms. The degree of freedom of mixture will be

A.

10/3

B.

8

C.

11/3

D.

4/3.

Solution:

QUESTION: 29

A particle of charge +q and mass m moving under the influence of a uniform electric field and a uniform magnetic field follows trajectory from P to Q as shown in figure. The velocities at P and Q are and respectively. Which of the statement(s) is/are correct

A.

B.

Rate of work done by electric field at P is

C.

Rate of work done by both the fields at Q is zero

D.

All

Solution:

QUESTION: 30

Two straight long conductors AOB and COD are perpendicular to each other and carry currents l1 and l2. The magnitude of the magnetic induction at a point P at a distance a from the point O in a direction perpendicular to the plane ABCD is

A.

B.

C.

D.

Solution:

QUESTION: 31

The resistance of a metallic conductor increases with temperature due to

A.

Change in carrier density

B.

Change in the dimensions of the conductor

C.

Increase in the number of collisions among the carriers

D.

Increase in the rate of collisions between the carriers and the vibrating atoms of the conductor

Depends on the frequency of incident light butindependent of metal used

B.

Depends on the metal used but independent of frequency of incident light

C.

Depends on the frequency of incident light as well as the metal used

D.

Is a constant, irrespective of metal used and frequency of incident light

Solution:

QUESTION: 33

The significance of knee voltage in case of forward biasing of a PN junction diode is that

A.

Upto knee voltage, there is no current across the junction

B.

Upto knee voltage, the current increases slowly with voltage

C.

After knee voltage, the current reverses its direction

D.

After knee voltage, the current gets saturated

Solution:

QUESTION: 34

Two identical capacitors A and B are charged to the same potential and then made to discharge through resistances RA and RB respectively, with RA > RB.

A.

A will require greater time than B to discharge completely

B.

More heat will be produced in A than in B

C.

More heat will be produced in B than in A

D.

None of these

Solution:

QUESTION: 35

A capacitor of capacitance C is charged to a potential V. The flux of the electric field through a closed surface enclosing the capacitor is

A.

B.

C.

D.

Zero

Solution:

QUESTION: 36

A current i is being driven through a cell of emf E and internal resistance r as shown. The chemical energy is stored in the cell at the rate of

A.

B.

C.

D.

None of these

Solution:

QUESTION: 37

In the circuit shown in figure potential difference between points A and B is 16V. The current passing through 2Ω resistance will be

A.

2.5A

B.

3.5A

C.

4.0A

D.

Zero

Solution:

QUESTION: 38

A glass plate has a thickness t and refractive index μ . The angle of incidence of ray from air into the plate is equal to the critical angle for glass glass-air interface. The displacement of ray is given by

A.

B.

C.

D.

Solution:

QUESTION: 39

In a Young’s double slit experiment, angular width of a fringe formed on a distant screen is 0.1°. If wavelength of light used to 6000 Å, then distance between the slits will be

A.

0.241 mm

B.

0.344 mm

C.

0.519 m

D.

0.413 mm

Solution:

QUESTION: 40

A rod AB moves with a uniform velocity v in a uniform magnetic field as shown in fig

A.

The rod becomes electrically charged

B.

The end A becomes positively charged

C.

The end B becomes positively charged

D.

The rod becomes hot because of Joule heating

Solution:

QUESTION: 41

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses

A : The reactance of an a.c. circuit at a frequency lower than the resonant frequency is capacitive.
R : The reactance of an inductance increases withthe frequency.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 42

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Short wave radiations is used for long distance.
R : Ionosphere acts as radio mirror and transmit wave.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 43

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Cerenkov radiation occurs when particle travels faster than velocity of light in a medium. This does not violate special theory of relativity.
R : First postulate of relativity refers to velocity of light in vacuum.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 44

​These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The apparent weight of a person standing in a lift, which moves upwards with uniform acceleration, is always higher than his true weight.
R : The weight always acts downwards.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 45

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The root mean square velocity of molecules of a gas having Maxwellian distribution of velocities is higher than their most probable velocity, at any temperature.
R : A very small number of molecules a gas which possess very large velocity, increase the root mean square velocity, without affecting the most probable velocity

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 46

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The impedance of a parallel LCR circuit is minimum at resonance.
R : In a.c. circuit resonance occurs when the inductive reactance is exactly equal to the capacitive reactance.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 47

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The angular velocity of each and every particle of a body having a rotational motion is always the same.
R : Each particle moves through the same angle in the same interval of time.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 48

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : A table cloth can be pulled from a table without dislodging the dishes.
R : To every action there is an equal opposite reaction.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 49

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The internal energy of an ideal gas does not change during an isothermal process.
R : The decrease in volume of a gas is compensated by a corresponding increase in pressure when its temperature is held constant.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 50

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : A cyclist riding round a corner at 15 km h–1 has no acceleration
R : His speed is not changing

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 51

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : An interference pattern formed by monochromatic light passing through the slits in young’s double slit experiment consists of fringes of equal width.
R : The change in optical path difference for light producing adjacent fringes is always one wavelength.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 52

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 53

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Gamma bombardment does not cause nuclear transmitation.
R : Gamma rays travel at the speed of light.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 54

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Even the slowest neutrons can penetrate the nucleus.
R : Neutrons are not electromagnetic in nature.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 55

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : In a double star system, the stars revolve around their common centre of mass and the total angular momentum about that point remain constant.
R : The interaction force between the two stars obeys Newton’s law of gravitation.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 56

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : An astronaut feels weightless in an artificial satellite around the earth.
R : Both satellite and the astronaut are freely falling towards the centre of the earth.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 57

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : When two charged mercury drops coalesce (joint together), the potential energy is conserved.
R : Total energy of an isolated system is constant for all time.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 58

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : If a vertical U-tube contains kerosene in one limb and water in the other, at equilibrium the level of kerosene is higher than that of water.

R : The pressures on the two limbs of U-tube being the same, the height of the liquid level depends on its density, the denser the liquid the lesser the height.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 59

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : A pulsar is a source of radio waves which changes intensity at regular intervals.
R : A pulsar is a rotating neutron star.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 60

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Melting of solid causes no change in internal energy.

R : Latent heat is the heat required to melt unit mass of solid.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 61

The thermodynamic efficiency of fuel cell is given by:

A.

B.

C.

D.

Solution:

QUESTION: 62

Gold number of I(casein), II(Haemoglobin), III(Gum Arabic) and IV (Sodium oleate) are 0.01, 0.03, 0.15, and 0.4, respectively. Which has minimum protective power:

An oleum sample is labelled as “118% H2SO4”. The % composition of oleum by wt is:

A.

20% H2SO4 and 80% SO3

B.

40% H2SO4 and 60% SO3

C.

80% H2SO4 and 20% and SO3

D.

50% H2SO4 and 50% SO3

Solution:

QUESTION: 94

5 ampere of current is passed of 193 sec through an equeous solution of NaCl. The total amount of NaOH formed on assuming 60% current effciency is:

A.

0.12 gm

B.

0.18 gm

C.

0.24 gm

D.

0.48 gm

Solution:

QUESTION: 95

E0 Cu2+ / Cu = 0.34. Calculate E Cu+2 / Cu at pH = 14 it

A.

–0.11 V

B.

+0.11 V

C.

+0.22 V

D.

–0.22 V

Solution:

QUESTION: 96

The major product expected when phthaldehyde is treated with NaOH is:

A.

B.

C.

D.

Solution:

QUESTION: 97

The total number of stereoisomers possible in 2, 3– dihydroxypentane is:

A.

2

B.

3

C.

4

D.

5

Solution:

QUESTION: 98

IUPAC name of the following compound is

A.

B.

C.

D.

Solution:

QUESTION: 99

The order of stability of species A, B and C given below is:

A.

A > C > B

B.

B > C > A

C.

C > B > A

D.

C > A > B

Solution:

QUESTION: 100

What is the product of hydroboration followed by oxidation of 1-methylcyclo-hexene?

A.

B.

C.

D.

Solution:

QUESTION: 101

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Although the ionisation energy of iodine (1008 kJ mol–1) is much lower than that of hydrogen (1310 kJ mol–1), yet, compounds of I+ cation are very less
R : Iodine is electronegative element and hence cannot form compounds in positive oxidtation states

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 102

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses

A : In case the central atom in a molecule is surrounded only by shared pairs of electrons, the molecule has a regular geometry
R : The shared pair of electrons repel each other with equal force so all bonds are equal force so all bonds are equidistant from each other

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 103

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The enthalpy of formation of gaseous oxygen molecules at 298 K and under a pressure of one atmosphere is zero
R : The entropy of formation of gaseous oxygen molecule under the same conditions is zero

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 104

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The value of van der Waal’s constant a , is larger for ammonia than for nitrogen
R : Hydrogen bonding is present in ammonia

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 105

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The pKa of a weak acid becomes equal to pH of the solution at the mid point of its titration
R : The molar concentrations of proton acceptor and proton donor become equal the mid point of titration of a weak acid

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 106

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The ratio of volume of gaseous reactants and products is in agreement with their molar ratio
R : Volume of a gas in inversely proportional to the number of mole of a gas

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 107

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The order a reaction can have a fractional value
R : The molecularity of a reaction can have a fractional value

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 108

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : In electrolysis the quantity of electricity needed for depletion of 1 mole of silver is different from that required for 1 mole of copper
R : The molecular weights of silver and copper are different

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 109

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A: Δ Hmix and Δ Vmix for an ideal solution is zero

R: A .... B interactions in an ideal solution are same as between A ..... A and .......B

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 110

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Fluorescein is an adsorption indicator
R : Fluorescein is a dye

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 111

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Activity of 108 undecayed radioactive nuclei of half life 50 days is equal to that of 10 × 108 number of undecayed nuclei of some other material with half life 60 days.
R : Activity is proportional to half life

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 112

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : CH3C≡ CH is more polar than CH3CH = CH2
R : sp- carbon is more electronegative than sp2 carbon

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 113

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Vinyl chloride can be differentiated from ethyl chloride by alcoholic AgNO3 solution
R : Chlorine atom in ethyl chloride is inert while it is labile in vinyl chloride

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 114

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Pentan-2-one can be distinguished from pentan- 3-one by iodoform test
R : Former is a methyl ketone whereas the latter is not a methyl ketone

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 115

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : All the amines, except tertiary amines are capable of forming inter molecularhydrogen bonds
R : Tertiary amines have large molecules and surface area

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 116

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Anhydrous CaCl2 cannot be used for drying NH3 gas
R : NH3 gas is basic in nature

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 117

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The bond angle of PBr3 is greater than that of PH3 but the bond angle of NBr3 is less than that of NH3
R : The size of bromine is less than that of hydrogen

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 118

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A: PCl5 is covalent in gaseous and liquid state but ionic in solid state.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 163

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses

A : Plant body in kingdom-Fungi is generally mycelium.
R : Reserve food material is in the form of glycogen and oil globules in fungi.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 164

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : t-RNA is called adapter-RNA or adoptive RNA
R : Function of t-RNA is to carry genetic information present in DNA inside nucleus to cytoplasm for protein synthesis.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 165

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Restriction endonucleases and ligase are the main tools of genetic engineering
R : Restriction endonuclease cuts the H-bonds of DNA.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 166

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : AIDS is called ‘Death Warrant’.
R : AIDS virus has liking for T-lymphocytes which produce antibodies

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 167

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Ulothrix filaments are felt as wet threads
R : Outer layer of cell wall of Ulothrix is made of protopectin

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 168

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : All tissues lying inside the vascular cambium is called as bark
R : Bark is made up of phellogen, phellem and phelloderm lying inside the secondary phloem.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 169

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Guttated water is impure.
R : Guttation is due to transpiration pull.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 170

​These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : For controlling air pollution, automobiles are fitted with catalytic converters.
R : Catalytic converter converts CO and harmful hydrocarbons into CO2 and water vapours.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 171

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : A pure - line is the progeny of a large number of heterozygous self - pollinated plants .
R : In this method, a large number of plants with desired characters are selected from a genetically mixed population.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 172

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : The energy capturing portion of photosynthesis takes place in thylakoid membranes and can not proceed without solar energy.
R : The synthesis part of photosynthesis occurs in chloroplast and does not directly require solar energy

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 173

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.

A : Cephalin acts as surfactant in the lung alveoli.
R : Cephalin is a phospholipid with choline base.

A.

If both Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

B.

If both the Assertion and the Reason are true but the Reason is not a correct explanation of the Assertion.

C.

If the Assertion is true but the Reason is false.

D.

If both the Assertion and the Reason are false.

Solution:

QUESTION: 174

These questions consists of two statements each, printed as Assertion (A) and Reason (R). While answering these questions you are required to choose any one of the following four responses.